1 to exchange

2 exchange

3 communication

4 interaction

5 to have social contact (with sb)

1 worker

2 workshop

3 (slang) troublesome

4 high-maintenance (person)

1 work (of art)

2 opus

3 classifier: 部 bù

4 classifier: 篇 piān

1 combat

2 to fight

1 school assignment

2 homework

3 work

4 task

5 operation

6 classifier: 个 gè

7 to operate

1 man seeks his way up just as water seeks its way down (idiom)

2 one should constantly strive to make progress

1 to commit to the waters (idiom); to lose sth irrevocably

1 to set an example (idiom); to serve as a model

1 tyrannical abuse (idiom); riding roughshod over people

1 to spin a cocoon around oneself (idiom); enmeshed in a trap of one's own devising

2 hoist by his own petard